What is soil made of? What is the composition of soil?

By volume: 38% mineral granules

Humus 12%.

25% for water and 25% for air

By mass ratio: mineral granules 95%.

The humus 5% water and air quality fractions are small and negligible.

Minerals. Water.

Humus. Air.

Soil is made up of three types of substances: solids, liquids, and gases. Solid matter includes soil minerals, organic matter, and microorganisms. Liquid matter mainly refers to soil moisture.

Gases are the air present in the pores of the soil. These three types of substances in the soil constitute a contradictory unity.

These three types of substances in the soil constitute a contradictory unity. They are interconnected, mutually restrictive, provide the necessary living conditions for crops, and are the material basis of soil fertility.

Ways to protect the soil

1. Garbage classification, plastic bags take thousands of years to decompose, after it is buried in the soil, it will reduce the permeability and drainage of the soil, hinder the growth of plant roots, affect the absorption of water and nutrients by plants, and waste batteries contain cadmium, mercury, lead and other heavy metals, it will make a square meter of soil lose its use value.

2. If you want to protect the soil, you need to plant plants in the soil that can protect the soil and water, and you can breed dogtooth roots.

Honeysuckle, knotweed, early maturing grass.

Tall fescue and other plants to avoid soil erosion, while in desert areas you can plant Saxon trees.

Plants such as meat hibiscus, salt grass, cactus, etc.

3. Protection method: When protecting the soil, chemical improvement agents can be applied to the soil to convert the heavy metals in the soil into insoluble compounds, and lime and sulfide need to be used.

carbonates, etc., and you should not dig up soil in the soil at will, because this will destroy the vegetation in the soil, and it will also take away the surface soil, causing mudslides.

and other events.

Soil is composed of organic matter, minerals, water, etc.

The formation of soil is a very complex process, soil is the product of the comprehensive action of five natural factors: parent material, climate, biology, topography and time, all the soil-forming factors always exist at the same time, and are equally important and irreplaceable to participate in the formation process of soil.

How soil is formed.

Soil is always subject to the development and change of soil-forming factors and is constantly formed and evolved. Soil is a natural body that is in motion, living and dying, advancing and retreating. There is a geographical distribution of the formation factors of soil, especially the zonal variation from the polar zone through the temperate zone to the equator.

Soil is a loose porous body composed of solid, liquid and gaseous three-phase substances. The solid matter segment includes minerals, organic matter, and microorganisms. Thus, soil is a natural organism that resembles it.

1. Inorganic matter - small particles of rock that have weathered into sand, silt, and clay.

2 Organic matter – decomposing plant and animal remains and fertilizer, collectively known as humus, comes from the Latin word for "earth".

3 water and 4 air.

An important substrate for cultivating flowers is soil. Soil is the material basis for the survival of flowers, and is the main source of water, fertilizer, gas and heat for the growth and development of flowers. This is because soil is made up of minerals, organic matter, soil moisture, and soil air.

Scientific experiments have proved that the soil suitable for plant growth accounts for about 38% of the soil by volume, about 38% of the minerals, about 12% of the organic matter, and about 15% of the soil air and soil moisture. According to some information, the most suitable water content for the growth of flowers and plants is 25% of the soil volume, and air also accounts for 25%.